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Showing 1 to 3 of 3 for “"Shear Zone Formation"”.
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Quartz-kyanite pods in Proterozoic rocks in northern New Mexico : shear zone formation along an older hydrothermal alteration horizon
… are discontinuous, lenticular, symmetrically zoned, and are stratiform within a map-scale sericitic horizon. Previous studies have not resolved whether the high-Al bulk composition of the quartz-kyanite pods was the result of weathering, hydrothermal alteration, or shearing. Geochemical …
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The interaction between chemical and mechanical processes during metamorphism: a microstructural and petrologic study of amphibolite shear zones, Cheyenne Belt, Southeastern Wyoming
Shear zones which deform margins of amphibolite boudins in the Cheyenne Belt, SE Wyoming, record a full strain transition from relatively undeformed amphibolite which has relict igneous textures to mylonitic amphibolite with a strongly developed L-S tectonic fabric. The strain transition is marked …
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The structural, metamorphic and thermal history of the Sonnblick Dome, southeast Tauern Window, Austria
… gneisses formed as granitoids above a subduction zone during the Hercynian. During Alpine continental collision, overthrusting of the African-derived Austroalpine units toward the northwest produced a foliation that becomes more intense towards the tectonic contact of the gneiss and the overlying …